CN102520510A - Hand-held double-mode wireless laser communication optical transceiver aiming reception apparatus - Google Patents

Hand-held double-mode wireless laser communication optical transceiver aiming reception apparatus Download PDF

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Publication number
CN102520510A
CN102520510A CN2011104362031A CN201110436203A CN102520510A CN 102520510 A CN102520510 A CN 102520510A CN 2011104362031 A CN2011104362031 A CN 2011104362031A CN 201110436203 A CN201110436203 A CN 201110436203A CN 102520510 A CN102520510 A CN 102520510A
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aim
aiming
essence
lens
slightly
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CN2011104362031A
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CN102520510B (en
Inventor
母一宁
刘涛
魏枫林
乔杨
王贺
李平
姜会林
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CHANGCHUN WEISHI ZHUIGUANG TECHNOLOGY Co Ltd
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CHANGCHUN WEISHI ZHUIGUANG TECHNOLOGY Co Ltd
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Abstract

The invention provides a hand-held double-mode wireless laser communication optical transceiver aiming reception apparatus, belonging to the wireless laser communication technology field. A present hand-held wireless laser communication device employs a single mode aiming receiving apparatus, an error is large, and contradiction of focal length and field of view exists. According to the invention, each of left and right lens barrels is provided with a set of aiming receiving apparatuses, an aiming part and a receiving part in each set of aiming receiving apparatuses share a same telescope object lens and are connected through a semitransparent mirror. In one set of aiming receiving apparatuses, a coarse sighting aiming part and a digital communication reception part share a same coarse sighting telescope object lens. A coarse sighting semitransparent mirror reflects digital communication light, backlight penetrates, magnification of the coarse sighting aiming part is 2 to 7 times, and an angle of visual field is 6 to 10 degrees. In the other set of aiming receiving apparatus, a fine sighting aiming part and an analog communication receiving part share a fine sighting telescope object lens, the fine sighting telescope object lens reflects most analog communication light, other analog communication light penetrates and is taken as beacon light, magnification of the fine sighting aiming part is 10 to 15 times, and an angle of visual field is 1 to 5 degrees.

Description

Hand-held dual-mode wireless laser communication fiber optic aiming receiving trap
Technical field
The present invention relates to a kind of hand-held dual-mode wireless laser communication fiber optic aiming receiving trap; Its collimation part comprise slightly take aim at, essence takes aim at two parts; Its receiving unit comprises digital communication, analogue communication two parts, and, slightly take aim at and lens barrel of digital communication partial common; Essence is taken aim at and the shared lens barrel of analogue communication, belongs to the wireless laser communication technical field.
Background technology
Wireless laser communication is meant with laser wave as the optical communication as transmission medium of carrier wave, atmosphere.Compare characteristics such as wireless laser communication has that information capacity is big, bandwidth, anti-electromagnetic interference capability are strong, good confidentiality with microwave communication.Compare with optical fiber communication and other wire communications, have maneuverability, little to urban operating mechanism influence, operating cost is low, be easy to advantage such as popularization.
Because the directionality of laser is strong, require the communicating pair optical axis of long distance laser communication strictly to aim at.In order to realize this aligning, prior art all adopts from motion tracking technique of alignment and platform systems stabilisation basically.For example application number is that a key name of 200910067502.5 is the disclosed technical scheme of one Chinese patent application of " beacon optical axis Precision Position Location System in the atmosphere laser communication system "; For another example, application number is that a key name of 200910114143.4 is the disclosed scheme of one Chinese patent application of " lasercom automatic tracking method and system ".They all have a common ground, promptly all through a telescopic system beacon beam are formed images, and adopt a kind of sensitization angular transducer; Like area array CCD or 4 quadrant detector; Survey beacon beam light shaft offset amount, realize that according to the clamping device of this light shaft offset amount control system the strictness of optical axis is aimed at, alignment precision is higher; And, have the effect that compensating platform shakes.But, owing to volume, weight aspect, said scheme also is not suitable for portable wireless laser communication, and hand-held should possess portable characteristics and emergency capability.
Existing portable wireless laser communication device all adopts monotype aiming receiving trap, and said monotype is meant to adopt and slightly takes aim at mode or adopt essence to take aim at mode, no beacon beam.The calibration of employing parallel light tube make Communication ray coaxial with the telescopic system convergence, so error is bigger.In addition, and its receiving system of looking in the distance comprises that a parameter such as focal length, enlargement ratio, the depth of field are single; When if such architectural feature causes this communicator to select long Jiao to look in the distance receiving system; Though alignment precision is higher, its visual field is narrow and small, is unfavorable for the initial acquisition of target; The receiving system if short Jiao of selection looks in the distance, though the visual field is bigger, its logitudinal magnification is too small, the optical axis alignment precision is lower.
Summary of the invention
The objective of the invention is to; Obtain a kind of portable wireless laser communication fiber optic; Its aiming receiving trap is except received communication light; Also have the ability that has the accurate aligning of small field of view when ability is taken aim in the sight of big visual field concurrently, for this reason, we have invented a kind of hand-held dual-mode wireless laser communication fiber optic aiming receiving trap.
The present invention's hand-held dual-mode wireless laser communication fiber optic aiming receiving trap about a cover aiming receiving trap is respectively arranged in two lens barrels; Aiming and the shared same telephotolens of receiving unit in every cover aiming receiving trap; Connect by semi-transparent semi-reflecting lens, it is characterized in that:
1, in a cover aiming receiving trap; Slightly take aim at the shared same telephotolens of slightly taking aim at of collimation part and digital communication receiving unit, slightly take aim at semi-transparent semi-reflecting lens reflection digital Communication ray, see through bias light; The enlargement ratio of slightly taking aim at collimation part is 2~7 times, and field angle is 6~10 degree;
2, in another set of aiming receiving trap; Essence takes aim at collimation part and the shared same essence of analogue communication receiving unit is taken aim at telephotolens; Essence is taken aim at the most of analogue communication light of semi-transparent semi-reflecting mirror reflection; All the other analogue communication light transmissions and as beacon beam, the enlargement ratio that essence is taken aim at collimation part is 10~50 times, field angle is 1~5 degree.
Its technique effect of the present invention is; Two collimation part optical parametric differences that lens barrel is interior; Thereby on the aiming pattern, have slightly take aim at, essence takes aim at two kinds, though the enlargement ratio of slightly taking aim at collimation part wherein is lower, field angle is bigger; Make fiber optic have the sight of big visual field and take aim at ability, can see rapidly and take aim at the other side's fiber optic.Though it is less that essence is taken aim at the collimation part field angle,, after slightly taking aim at; Less field angle can lock the other side's fiber optic; Because essence is taken aim at collimation part and had higher enlargement ratio, makes fiber optic have accurate alignment ability, especially essence is taken aim at collimation part and can Communication ray be isolated a part as beacon beam; Make that the aiming mode of communicating pair fiber optic is the closed loop aiming mode, have higher pointing accuracy.Though adopting the wireless laser communication fiber optic of the present invention's aiming receiving trap is hand-held, its pointing accuracy will be higher than existing portable wireless laser communication fiber optic.
Description of drawings
Accompanying drawing is the present invention's a hand-held dual-mode wireless laser communication fiber optic aiming receiving trap structural representation, and this figure double as is a Figure of abstract.
Embodiment
The embodiment of the present invention's hand-held dual-mode wireless laser communication fiber optic aiming receiving trap is following, sees shown in the accompanying drawing.
About a cover aiming receiving trap is respectively arranged in two lens barrels, aiming and the shared same telephotolens of receiving unit in every cover aiming receiving trap are connect by semi-transparent semi-reflecting lens.
In a cover aiming receiving trap, slightly take aim at the shared same telephotolens of slightly taking aim at of collimation part and digital communication receiving unit.Slightly take aim at semi-transparent semi-reflecting lens 1 reflection digital Communication ray, wavelength is a kind of of 850nm, 1310nm, 1550nm, sees through bias light, i.e. visible light.The enlargement ratio of slightly taking aim at collimation part is 2~7 times, and field angle is 6~10 degree, and the entrance pupil diameter is 72mm, and exit pupil diameter is 12mm.The said telephotolens of slightly taking aim at is slightly taken aim at positive light coke compound lens 2 with one piece of negative power lens 3 combines by what positive and negative two pieces of lens gummed formed, is to take the photograph formula structure far away, and focal length grows but objective lens length is shorter, and achromatism.
Slightly taking aim in the collimation part, slightly taking aim at semi-transparent semi-reflecting lens 1 on the light path of slightly taking aim between positive light coke compound lens 2 and the negative power lens 3.After negative power lens 3, have successively along the incident light travel path and slightly to take aim at image rotation prism group 4, slightly take aim at graticule 5 and slightly take aim at eyepiece group 6, bias light images in eye pupil position 7.Wherein, slightly take aim at image rotation prism group 4 and be made up of two right-angle prisms, their principal section is mutually 90 °, and two inclined-planes are relative.Slightly taking aim at eyepiece group 6 is made up of negative positive and negative five pieces of lens.The aperture diaphragm of slightly taking aim at collimation part is arranged on and slightly takes aim at positive light coke compound lens 2 places, can effectively reduce the bore of whole optical system like this.The field stop of slightly taking aim at collimation part is arranged on slightly to be taken aim on the graticule 5, so that the visual field is maximum.Observe the graduation aiming of slightly taking aim on the graticule 5 and picture at a distance from eye pupil position 7 through slightly taking aim at eyepiece group 6.
In the digital communication receiving unit, slightly take aim at semi-transparent semi-reflecting lens 1 and slightly taking aim between positive light coke compound lens 2 and the digital communication plus lens 8, be digital communication catoptron 9 afterwards, digital communication light converges on the digital communication photodetector photosurface 10.Since the digital communication receiving unit with slightly take aim at the shared same telephotolens of slightly taking aim at of collimation part, therefore, the entrance pupil diameter of digital communication receiving unit, focal length and slightly to take aim at collimation part identical also are 72mm like the entrance pupil diameter, focal length also is 90mm.
In another set of aiming receiving trap, essence takes aim at collimation part and the shared same essence of analogue communication receiving unit is taken aim at telephotolens.Essence is taken aim at most of as 90% the analogue communication light of semi-transparent semi-reflecting lens 11 reflection, and all the other are like 10% analogue communication light transmission and as beacon beam.The enlargement ratio that essence is taken aim at collimation part is 10~50 times, and field angle is 1~5 degree, and the entrance pupil diameter is that 72mm, exit pupil diameter are 4.5mm.Said essence is taken aim at telephotolens and is taken aim at positive light coke compound lens 12 for the essence that is formed by positive and negative two pieces of lens gummed, can achromatism.
Take aim in the collimation part in essence; Essence is taken aim at semi-transparent semi-reflecting lens 11 and is positioned at essence and takes aim on the light path after the positive light coke compound lens 12; Next have successively along the incident light travel path that essence is taken aim at image rotation prism group 13, essence takes aim at graticule 14 and essence is taken aim at eyepiece group 15, bias light and beacon beam image in eye pupil position 7.Wherein, essence is taken aim at image rotation prism group 13 and is made up of two right-angle prisms, and their principal section is mutually 90 °, and two inclined-planes are relative.Essence is taken aim at eyepiece group 15 and is made up of negative positive and negative three pieces of lens.The aperture diaphragm that essence is taken aim at collimation part is arranged on essence and takes aim at positive light coke compound lens 12 places, can effectively reduce the bore of whole optical system like this.The field stop that essence is taken aim at collimation part is arranged on essence and takes aim on the graticule 14, so that the visual field is maximum.Take aim at eyepiece group 15 from eye pupil position 7 through essence and observe the smart graduation aiming of taking aim on the graticule 14 and picture at a distance.
In the analogue communication receiving unit, essence is taken aim at semi-transparent semi-reflecting lens 11 and is taken aim between positive light coke compound lens 12 and the analogue communication plus lens 16 in essence, is analogue communication catoptron 17 afterwards, and analogue communication light converges on the analogue communication photodetector photosurface 18.Because analogue communication receiving unit and essence are taken aim at the shared same essence of collimation part and taken aim at telephotolens, therefore, it is identical that the entrance pupil diameter of analogue communication receiving unit, focal length and essence are taken aim at collimation part, also is 72mm like the entrance pupil diameter, and focal length also is 90mm.
It is identical with the smart focal length of taking aim at collimation part slightly to take aim at collimation part, as is 90mm, thereby has identical eye pupil position; In the aiming process; Aiming person's eyes are observed identical scenery simultaneously, need not to adjust respectively the position of images of left and right eyes, can switch apace to observe the visual field.Slightly take aim at first work minute surface plating digital communication light anti-reflection film and analogue communication optical reflection film of slightly taking aim at positive light coke compound lens 2 in the telephotolens, anti-reflection like 850nm, the 650nm reflection; Essence is taken aim at first work minute surface plating analogue communication light anti-reflection film and digital communication optical reflection film that essence in the telephotolens is taken aim at positive light coke compound lens 12, and anti-reflection like 650nm, 850nm reflects.

Claims (8)

1. a hand-held dual-mode wireless laser communication fiber optic aims at receiving trap; About a cover aiming receiving trap is respectively arranged in two lens barrels; Aiming and the shared same telephotolens of receiving unit in every cover aiming receiving trap are connect by semi-transparent semi-reflecting lens, it is characterized in that:
One, in a cover aiming receiving trap; Slightly take aim at the shared same telephotolens of slightly taking aim at of collimation part and digital communication receiving unit, slightly take aim at semi-transparent semi-reflecting lens reflection digital Communication ray, see through bias light; The enlargement ratio of slightly taking aim at collimation part is 2~7 times, and field angle is 6~10 degree;
Two, in another set of aiming receiving trap; Essence takes aim at collimation part and the shared same essence of analogue communication receiving unit is taken aim at telephotolens; Essence is taken aim at the most of analogue communication light of semi-transparent semi-reflecting mirror reflection; All the other analogue communication light transmissions and as beacon beam, the enlargement ratio that essence is taken aim at collimation part is 10~50 times, field angle is 1~5 degree.
2. hand-held dual-mode wireless laser communication fiber optic aiming receiving trap according to claim 1; It is characterized in that; The said telephotolens of slightly taking aim at is combined with one piece of negative power lens (3) by the positive light coke compound lens (2) of slightly taking aim at that positive and negative two pieces of lens gummed forms, and is and takes the photograph formula structure far away; Slightly taking aim at semi-transparent semi-reflecting lens (1) is positioned on the light path of slightly taking aim between positive light coke compound lens (2) and the negative power lens (3); At negative power lens (3) afterwards, have successively along the incident light travel path and slightly take aim at image rotation prism group (4), slightly take aim at graticule (5) and slightly take aim at eyepiece group (6).
3. hand-held dual-mode wireless laser communication fiber optic aiming receiving trap according to claim 2 is characterized in that slightly take aim at image rotation prism group (4) and be made up of two right-angle prisms, their principal section is mutually 90 °, and two inclined-planes are relative; Slightly taking aim at eyepiece group (6) is made up of negative positive and negative five pieces of lens.
4. hand-held dual-mode wireless laser communication fiber optic aiming receiving trap according to claim 2 is characterized in that, slightly takes aim at first work minute surface plating digital communication light anti-reflection film and analogue communication optical reflection film of positive light coke compound lens (2).
5. hand-held dual-mode wireless laser communication fiber optic aiming receiving trap according to claim 1 is characterized in that said essence is taken aim at telephotolens and taken aim at positive light coke compound lens (12) for the essence that is formed by positive and negative two pieces of lens gummed; Essence is taken aim at semi-transparent semi-reflecting lens (11) and is positioned at essence and takes aim on positive light coke compound lens (12) light path afterwards, has successively along the incident light travel path next that essence is taken aim at image rotation prism group (13), essence takes aim at graticule (14) and essence is taken aim at eyepiece group (15).
6. hand-held dual-mode wireless laser communication fiber optic aiming receiving trap according to claim 5 is characterized in that, essence is taken aim at image rotation prism group (13) and is made up of two right-angle prisms, and their principal section is mutually 90 °, and two inclined-planes are relative; Essence is taken aim at eyepiece group (15) and is made up of negative positive and negative three pieces of lens.
7. hand-held dual-mode wireless laser communication fiber optic aiming receiving trap according to claim 5 is characterized in that essence is taken aim at first work minute surface plating analogue communication light anti-reflection film and digital communication optical reflection film of positive light coke compound lens (12).
8. hand-held dual-mode wireless laser communication fiber optic aiming receiving trap according to claim 1 is characterized in that, it is identical slightly to take aim at the focal length that collimation part and essence take aim at collimation part.
CN2011104362031A 2011-12-23 2011-12-23 Hand-held double-mode wireless laser communication optical transceiver aiming reception apparatus Expired - Fee Related CN102520510B (en)

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN105629439A (en) * 2016-01-19 2016-06-01 北京大学 Lens assembly used for wireless optical communication receiving
CN109633886A (en) * 2019-01-15 2019-04-16 浙江华东光电仪器有限公司 A kind of telescope optical system
CN110365409A (en) * 2019-08-15 2019-10-22 长春理工大学 A kind of vehicle-mounted compact laser communicating integral optics base station
CN110579872A (en) * 2019-09-27 2019-12-17 网络通信与安全紫金山实验室 Tracking and aiming system and adjusting method
CN110687660A (en) * 2018-07-04 2020-01-14 佳能株式会社 Lens apparatus and imaging apparatus including the same
CN113422881A (en) * 2021-08-24 2021-09-21 南京英田光学工程股份有限公司 Sweep and swing combined low-overlap laser communication scanning and capturing device and method

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105629439A (en) * 2016-01-19 2016-06-01 北京大学 Lens assembly used for wireless optical communication receiving
CN105629439B (en) * 2016-01-19 2018-06-01 北京大学 The lens assembly received applied to wireless light communication
CN110687660A (en) * 2018-07-04 2020-01-14 佳能株式会社 Lens apparatus and imaging apparatus including the same
US11252394B2 (en) 2018-07-04 2022-02-15 Canon Kabushiki Kaisha Lens apparatus and imaging apparatus including the same
CN109633886A (en) * 2019-01-15 2019-04-16 浙江华东光电仪器有限公司 A kind of telescope optical system
CN110365409A (en) * 2019-08-15 2019-10-22 长春理工大学 A kind of vehicle-mounted compact laser communicating integral optics base station
CN110365409B (en) * 2019-08-15 2024-01-30 长春理工大学 Vehicle-mounted compact type laser communication integrated optical base station
CN110579872A (en) * 2019-09-27 2019-12-17 网络通信与安全紫金山实验室 Tracking and aiming system and adjusting method
CN110579872B (en) * 2019-09-27 2021-12-07 网络通信与安全紫金山实验室 Tracking and aiming system and adjusting method
CN113422881A (en) * 2021-08-24 2021-09-21 南京英田光学工程股份有限公司 Sweep and swing combined low-overlap laser communication scanning and capturing device and method

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